It has a built-in 181-chanel NTSC tuner; you'll need a separate HDTV tuner to receive 1080i high-definition broadcasts. The PT4298HS offers dual-tuner picture-in-picture functionality, which allows you to view antenna inputs on both the main picture and subpicture simultaneously, with separate tuning control for each.

The 3D digital comb filter, considered the best comb filter available, separates colors and eliminates distortion to give you a razor-sharp picture with breathtaking clarity.

Tech Talk

• Scanning method: Frames of video are made up of many lines of video that are scanned onto a television screen so closely they appear to be a solid picture. The scanning method can be either interlaced or progressive. Interlaced scanning (also used in today's analog TV), indicated by an "i" in the video format, fills in the odd number lines (1,3,5,7...) and then fills in the even number lines (2,4,6,8...) until the frame is complete. Progressive scanning, indicated by a "p," fills in each line consecutively until the frame is complete, like a computer display.
• Component video: Unlike a single video input, component video maintains the video signal as three separate signals through three jacks. This connection provides optimum quality. To ensure maximum picture quality, use three video-grade cables for the Y, Pb, and Pr connections.